feat(env): 添加环境变量配置并初始化项目

- 新增 .env 文件，定义服务器端口和 IP 地址
- 创建 .gitignore 文件，忽略 node_modules 目录
- 修改 start.js，从环境变量中读取配置
- 初始化 package-lock.json 和 package.json
- 添加 dotenv 依赖用于加载环境变量

.env

@@ -0,0 +1,5 @@
+# 定义服务器监听的端口号
+GATE_PORT=9001
+
+# 定义服务器监听的IP地址
+GATE_HOST=127.0.0.1

.gitignore

@@ -0,0 +1 @@
+node_modules/

GateServer/start.js

@@ -1,6 +1,11 @@
+require('dotenv').config(); // 引入dotenv库并加载.env文件中的环境变量
 const GateServer = require('./index');
 
-const server = new GateServer(8080, '127.0.0.1');
+// 从环境变量中读取端口和IP地址
+const port = parseInt(process.env.GATE_PORT, 10);
+const host = process.env.GATE_HOST;
+
+const server = new GateServer(port, host);
 
 server.on('connection', (socket) => {
     console.log('A new client has connected');

package-lock.json

@@ -0,0 +1,27 @@
+{
+  "name": "node-mir-server",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "node-mir-server",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "dotenv": "^16.4.7"
+      }
+    },
+    "node_modules/dotenv": {
+      "version": "16.4.7",
+      "resolved": "https://registry.npmmirror.com/dotenv/-/dotenv-16.4.7.tgz",
+      "integrity": "sha512-47qPchRCykZC03FhkYAhrvwU4xDBFIj1QPqaarj6mdM/hgUzfPHcpkHJOn3mJAufFeeAxAzeGsr5X0M4k6fLZQ==",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    }
+  }
+}

package.json

@@ -10,5 +10,8 @@
     "server"
   ],
   "author": "kubbo",
-  "license": "ISC"
+  "license": "ISC",
+  "dependencies": {
+    "dotenv": "^16.4.7"
+  }
 }